Originally Posted by rldzhao
Probably should still let it vent. The point of the line is to contain the fluid inside the tubes, instead of spilling it all over. It the intention is to plug the hole, why not plug it on the cap?
What size tube is that? Did you have to drill the cap to make a bigger hole?
The tube has an OD of 3/16". Fits right in the vent hole.
I tested this setup at my last track day with no issue. I will let it vent for the next track day and will report.
BTW, there a few of us tracking our E9X M3 on a regular basis around Seattle and they all leak power steering fluid.